This is similar to a nine patch, but split with rectangles in four of the blocks. You must use two different fabrics in the split patches and they two fabrics should have a lot of contrast.
Rotary cutting directions for the Split Rectangle Nine Patch are posted.
If you have made blocks or a quilt from these patterns, please post a link in the comments section of the relevant block or on the AQ Block-a-Long Flickr group. I would love to see what you have made.